Milking apparatus.



W. 0. BROWN.

MILKING APPARATUS APPHCATION FILED JULY 18, 1914.

1 149 246, Patented Aug. 10, 915.

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Wannaen c. ea-own, or o'aranro'can ana.

MILKZNG APlPiEMiTUS.

Alumna-mum Specification of Letters Fiat-eat.

1 eneas,

.Patentetl Ping. Ill), 1.915.

Application filed July 18, .iilil. EI-erlsl 3&2.

invented certain new and useful Improvements in Milking Apparatus, of which the following is a specification.

This invention relates to apparatus employing mechanical suction in the milking of cows, and my object is to devise simple and e-liective apparatus which may be easily operated. by one man.

I attain my object by means of the constructions hereinafter specifically (lQSLTllJTl anal illustrateil in the accompanying drawings in Which- 1 Figure 1 is a sirle elevation of my iinproved apparatus; Fig. 2 a plan view oi the air pump and its supporting carriage; Fig. 3 a side elevation partly in section oil one of the teat cups; Fig. 4 is a. plan view of the teat cups; and Fig. 5 a side elevation of the discharge valve.

In the drawings like numerals of reference indicate corresponding parts in the different figures.

l is a framework preferably proviclecl with a pair of wheels 2 at one end, and a suitable leg 3 at the other end. This frameworl: is thus readily portable to suit the convenience of the user.

The air pump comprises a shaft suitably journalecl on the frame 1 provided with the fly Wheel 5. Cranks 6 are "formed at opposite ends of the shaft 4. and one crank has an operating handle 7 secured thereto. The cranks are set opposite one another and are pivotally connected with the cylinders 8. The piston rods 9 are hollow and to them are connected the lines of pipe 10 leading to the teat cups. The piston rods are pivotally connected with the frame shown so that the pistons and cylinders rock on the pivots 11 when the air pump is in operation. This orinsa very convenient and compact arrangement of the air pump well adapted "for my purpose...

Theinterior construction of the pistims and cylinders not shown as this may he of any well known forth; no valves being necessary.

Each line of piping is connected with av head 12 from which lead the branch pipes leading to the teatcups. Intermediate the ends of each line o p p g l i places,

"connected with the r I in tl 1s prei the lisch '5. valve i l. This is preferably an Lshapeu cas ng suitably adapted for connection with the parts of piping. The lower one of the horizontal part of the l. is open anu is provitlccl with a, hinged valve il r W n f fl f rap a. i no LllE mining the up is pre erahly coi'znectetl by means of the threaded stem 16 with the arm 1! which is pivoted on the valve easing. By rotating the disk the valve may be adjusted to fit the seat ac- (-ura tely. and when adjusted may be lockecl by means of the lock nut '18 screwed on the stem. lit The valve casing has a groove-l9 formed therein adapted to engage a cover il rm l 1e clevice is in use. I raruction of the teat cups is shown more particularly in 3 and 41-. Each mp is timmeil in two parts, the head 91 and the tapered shank The head is prefer-- ably suhstantially cylindrical and is proviileil with the rim :33. The larger end of theshank adapted to he telescopically im 23, preferably with- The joint between the two must oi court" he air tight and while metal to metal may make a tairly tight joint I prefer to panic the oint with some resilient For this purpose I form the an the shank 22 into wl'iich is oi resilient nniterial which contacts l inner surface of the'rirn and nches :1 air tight oint. The resilient diaphragm 26 is preferably formed a s1 of rubber which is stretched over the heacl 21 as shown and se cared to the head by means of the annular spring 2? which clamps the margins of the sheet of ma against the 1 3 ties of the head. lhe spring pre l irahly also an annular groove 28 is Ewan-ml in the head. into which the spring clamps the margins of the sheet forming the rliaphr." in opening is formalin the cliaphr; usual and the size of this opening, as evident, may be readily ad- *(l by stretcsing tl'ie diaphragm. out by argns under the sprin By *rng the zl'iaphragin may he atract as much as possible. cage-meat is of much importance as it allow the diaphragm to he asily renewec, but is enables ouiclrly aclapt the teatcups to eat sizes. The iorznation on a. mill: pail, shown in .EOITi'I'ZlIl the (lie. iii-8. 111

.n-aoly a coiled wire spring andv of the teat cup in two partsis also of great importance particularly in a one man machine as it enables the teat cup to be fitted diaphragm is adjusted to the proper size, and before or after this operation the parts of the teat cup are separated, the head is then pushed up until the teat partly enters the aperture in the diaphragm. While the head of the teat cup is held up with one hand the milker can readily pull. the teat through the diaphragm with his other hand as it is accessible through the open lower end of the head. The lower part of the teat cup is then-pressed into place and after all four for the one animal have been thus adjusted theapparatus is in condition for milking to begin.

The device is shown as adapted for milkmg two animals at once, two pumps being shown each provided with a line of pipe 10. The device is readily adapted, however, without departing from the spirit of my invention, to simultaneously milk a larger number of animals.

What I claim as my invention is:

1. In milking apparatus a teat cup of stilt material formed in two parts detachably connected, one'part being provided with and suitably supporting a flexible perforated diaphragm through which a teat may project so that it may be grasped by the operator to enable the diaphragm to be pushed up in place on the teat, the other part being disconnectible without afi'ecting the support "of the diaphragm and'being of 'a bore sufficient to freely receive the teat projecting through the diaphragm.

' 2. In milking apparatus, a tapered teat cup of stiff material divided adjacent its larger end, the parts being detachably connected, the larger part being provided with and suitably supporting a flexible perforated diaphragm through which a teat may project so that it may be grasped by the the diaphragm to be pushed up in place on the teat, and a shank adapted to be telescopically connected and disconnected with said rim without affecting the support of the diaphragm and being of a bore sufficient te freely receive the teat projecting through the diaphragm.

l. In milking apparatus a teat cup comprising a head provided with a flexible perforated diaphragm and. a cylindrical rim, a

shank adapted to be telescopically connected with said rim and having an annular reccss formed therein, and a flexible washer fitted in said recess and adapted to engage 7 said rim to form an air tight joint.

5. In milking apparatus a teat cup having an open outer end, a sheet of resilient material forming a diaphragm and having a central opening therein, and an annular spring adapted to clamp the margins of the sheet against the sides of the teat cup.

6. In milking apparatus a teat cup having an open outer end and an external annular recess formed. adjacent the end, a sheet of resilient material forming a diaphragm and having a central opening therein, and an annular coiled wire spring adapted to clamp the margins of the sheet in said annular recess.

7. A teat cup formed in two parts detachably connected and provided with a resili ent apertured diaphragm, and means for adjusting the size of the aperture.

Toronto, Ont, this 11th day of July, 

